Elevator and loader.



W. G. EVANS.

ELEVATOR AND LOADBR.

APPLICATION FILED 001. 31, 1910. 1,004,863. Patented 0013,1911.

3 SHEETSSHEET 1.

-WITNESSES ATTORNEY W. G. EVANS.

ELEVATOR AND LOADER.

APPLICATION FILED 001231, 1910.

I Patented Oct. 3, 1911.

3BHEETSSHEET 2.

ATTORN EY COLUMBIA PLANOGRAPI! C0-.\VA5|HNGTON. n. :4

a W. C. EVANS.

. ELEVATOR AND LOADER.

- APPLICATION FILED 00T.31, 1910.

1,004,863 Patented Oct. 3, 1911.

3 SHEETS-SHEET 3.

WITNESSES ATTORNEY COLUMBIA PLANOGRAPH COQWASHXNGTON. n. c"

WILLIAM C. EVANS, OF FORT COLLINS, COLORADO.

ELEVATOR AND LOADER.

Specification of Letters Patent.

Patented Oct. 3, 1911.

Application filed October 31, 1910. Serial No. 590,076.

To all whom it may concern:

Be it known that I, WILLIAM citizen of the United States, residing at Fort Collins, in the county of Larimer and State of Colorado, have invented a new and useful Elevator and Loader, of which the following is a specification.

The invention relates to an elevator and loader for handling grain, gravel, sand, manure, and other loose material and substance, capable of being handled in bulk and loaded into cars, wagons, or other receptacles.

The object of the present invention is to provide a simple, inexpensive and efficient portable elevator and loader of great strength and durability, adapted to elevate a load of material to a definite height and automatically discharge its contents into receptacles at different elevations.

With these and other objects in view, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings z Figure 1 is a perspective view of an elevator and loader, constructed in accordance with this invention, and arranged to receive a load of material. Fig. 2 is a longitudinal sectional view of the same, the parts being in their dumping position. Fig. 3 is a reverse plan view. Fig. 4; is a detail perspective view of one end of the platform. Fig. 5 is a detail View, showing another form of the platform. Fig. 6 is a vertical sectional view on the line 66 of Fig. 5. Fig. 7 is an end elevation of an elevator and loader, illustrating another form of the invention. Fig. 8 is a side elevation of the same.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

In the embodiment of the invention illustrated in Figs. 1 to 4 inclusive of the drawings, l1 designate longitudinal side beams or sills, forming a base or main frame and connected at their front and rear ends by transverse rods or shafts 2 and 3, forming,

G. Evans, a

respectively, pivots of an oscillatory platform 4 and a tiltable frame 5 and having terminal journal or spindle portions for the reception of wheels 6. The base or main frame may, of course, be constructed in any other desired manner, and in practice will be of a strength to correspond with the character of the material to be handled. The wheels, which render the elevator and loader portable, may be sunk into the ground, as illustrated in dotted lines in Fig. 2 of the drawings, to permit the base frame to rest solidly upon the ground when the apparatus is in use. The tiltable frame is adapted to swing inwardly over the base when it is desired to move the apparatus from one point or place to another.

The platform 4:, which may be of any desired size, is shown oblong in the accompanying drawings, and it extends transversely of the rear portion of the base when it is in its lower position. It is provided with forwardly extending arms 7 and 8, rigidly secured to the lower face of the platform and provided at their front terminals with perforations through which passes the front transverse pivot rod or axle 2. The arms 7 which are located at opposite sides of the apparatus, are arranged in parallelism and fit against the inner faces of the side sills or beams 1. The other arms 8 are arranged at an angle and diverge forwardly and operate in the nature of braces to strengthen the structure. The arms permit the platform 4 to swing upwardly from the position illustrated in Fig. 1 of the drawings to that shown in Fig. 2 and by varying the length of the arms, the height to which the platform is elevated may be changed.

The material to be handled may be delivered upon the platform in any preferred manner and by any suitable means, such as a wheelbarrow, scraper, shovel, etc., and the platform is equipped at its rear edge with a transversely disposed beam 9, forming a short upwardly extending wall and adapted to retain the material on the platform. The beam strengthens the platform and the rear wall may be made of any desired height to adapt the platform for handling different kinds of material.

The platform is equipped at its front edge with a hinged upwardly extending wall 10, having its lower hinged edge arranged in close proximity to the front edge of the platform 4 to prevent loss of material and secured to the platform by means of a pintle rod 11, which passes through eyes 12 and 13 of hinge elements 14 and 15. The hinge elements 14 consist of plates or leaves, secured to the upper face of the platform and provided at their front ends with the eyes 12. The other hinge elements 15 consist of bands, embracing the lower ends of upright cleats 16 and provided with the eyes 13. The cleats are secured to the outer or front face of the hinged wall, and they strengthen the same and also form means for the attachment of inclined pivotal standards or braces 17. The inclined standards or braces 17 extend forwardly and downwardly from the upper ends of the cleats 16, and are pivoted at their upper ends to the inner faces of the same by bolts 18, or other suitable pivots, and their lower ends are connected by pivots 19 with short links 20, extending from the lower ends of the pivotal braces or standards 17 to and pivotally mounted on the front transverse rod or shaft 2. lVhen the platform is swung upwardly by the means hereinafter described, it is tilted downwardly and forwardly and the weight of the material resting against the front hinged wall 10 presses the same forwardly or outwardly and maintains the links in a horizontal position, and

as the oscillatory standards or braces 17 are shorter than the pivoted arms 7 and 8, the upper or outer portion of the hinged wall swings through a different are from the platform. The hinged wall is automatically swung downwardly and is caused to assume a downwardly and forwardly inclined position, as illustrated in Fig. 2 of the drawings, whereby it is adapted to form a chute for discharging the material into a wagon 21, car or other receptacle. By varying the length of the pivotal standards or braces 17, the amount of the swinging movement imparted to the hinged wall independently of the platform may be varied. hen the platform swings downwardly, the parts are automatically returned to their initial position. The hinged wall 10 is provided at its inner face with inclined upwardly converging strips or bars 22, forming guides and adapted to direct the material toward the central portion of the outer edge of the hinged wall.

The platform and the hinged wall may be constructed of various dimensions to provide an elevator and loader of the desired capacity, and to adapt the apparatus for different kinds of material, and in Figs. 5 and 6 is illustrated a platform 23, having a rear wall 24 of approximately the same height as the front hinged wall 25. The platform is also provided with end walls composed of overlapping front and rear sections 26 and 27, connected, respectively,

with the hinged front wall and with the platform and the rear wall and adapted to slide on each other to provide extensible side walls for retaining the material on the platform. This form of the device is especially adapted for loading grain and light material, adapted to be loaded on the plat form to a considerable height and requiring both side and end walls to retain it on the platform.

The platform is raised and lowered by hoisting mechanism consisting of a rope or cable 28, connected with suitable power and extending beneath and partially around a lower side pulley 29 and then upwardly to an overhead pulley 30, carried by the tiltable frame 5. The inner portion of the rope or cable then extends downward to a lower platform pulley 31 and passes under the same and is then extended upward to the top of the tiltable frame, its terminal portion 32 being suitably fixed to the said tiltable frame. The rope or cable forms a depending loop to receive the pulley 31, which is suitably mounted on the platform at the back thereof, but the rope or cable and the pulleys may be arranged in any desired manner to secure the proper lifting action on the platform. The tiltable frame 5, which is in the form of a tripod, is composed of inclined side bars or members 33, and a rear inclined side bar or member 34. The bars or members 33 and 34 are connected at their upper ends by a transverse pivot or bolt 35. The side bars or members 33 are connected near their lower terminals by a transverse connecting bar 36, and the lower ends 37 of the side bars or beams are provided with registering perforations to receive the rear transverse pivot or shaft 3. The lower end of the rear inclined bar or member 34 is connected with the pivot by a short longitudinal bar or beam 38, secured at its rear end to the lower terminal of the bar or member 34, and provided at its front end with a bearing recess 39 to ride on the pivot or shaft 37. The bottom longitudinal bar or beam 38 is also connected with the rear bar 01 member 34 by an inclined brace 40, extending upwardly and rearwardly from an intermediate portion of the bar or beam 38 and secured at its upper end to the inclined bar or member 34. hen the hoisting rope is pulled outwardly, the loop 41, which extends from the top of the tiltable frame to the platform, is shortened and the platform is thereby raised and the tiltable frame 5 swings inward automatically until the material is dumped. The weight of the platform will in practice return the parts to their initial position, and the weight of the bottom bar or beam 38 assists in returning the tiltable frame to an upright position.

In Figs. 7 and 8 of the drawings is illustrated another form of the invention in which the platform 42 is provided with relatively long arms 43 and 44, and the inclined braces 45 of the hinged side or wall 46 are also relatively long. The increased length of the arms and the links or braces 45 are adapted for raising the platform relatively high, and the tiltable frame is composed of side sections, each comprising a pivoted front bar or member 47 and a rear bar or member 48, connected at its upper end with the front bar or member by a bolt 49, or other suitable fastening device. The bars or members 47 and 48 are inclined and are suitably connected by a rod 50, or other suitable brace for maintaining the rear bar or member in proper position with relation to the front bar or member. The lower ends of each of the rear bars or members are free, and the sides of the tiltable frame are adapted to swing forwardly or rearwardly in unison on the pivots of the lower ends of the front bars or members 47 Separate bolts 49 are shown connecting the front and rear bars or members 47 and 48, but a continuous transverse rod may be employed for this purpose, if desired. The sides of the tiltable frame may also be provided with transversely inclined braces 51, secured at their upper ends to the side faces of the front bars or members 47 and provided at their lower ends with blocks 52, forming feet and adapted to rest upon the ground, or other' supporting surface. The braces 51 and the blocks 52 are movable with and carried by the sides of the tiltable frame in the operation of the apparatus. The front ends of the inclined braces or bars 45 are connected by suitable pivots 53 with short links 54, and the said inclined braces or bars are adapted to support the hinged wall 46 and cause an automatic lowering of the same and a consequent dumping of the contents of the platform when the latter is swung upwardly. The platform is movable upwardly and downwardly between the sides of the tiltable frame, and the hoisting mechanism is preferably composed of a pair of ropes or cables 55, each guided by upper and lower pulleys 56 and 57, and having a depending loop 58 receiving a pulley 59 of the platform 42. The terminal 60 of each of the hoisting ropes is secured to the tiltable frame at the top thereof, and when the ropes or cables are pulled upon the loops 58 are shortened and the platform is raised. The frame is adapted to tilt forwardly with the upward movement of the platform, but a fixed frame or support for the hoisting ropes or cables may be employed if desired. The apparatus is also susceptible of other modifications, and it may be constructed of any suitable material and may be made of any dimensions to adapt it for handling any character of loose material. The platform 42 is provided at the rear edge with a transverse beam 61, forming a short wall to cooperate with the hinged wall for retaining the material on the platform. The hinged wall is provided with inclined upwardly converging guide strips 62, similar to those heretofore described for directing the material toward the center of the hinged wall in discharging the material from the platform.

If desired the elevator and loader may be equipped with counter-balancing means for assisting the raising of the platform and to enable the same to be slowly lowered and returned to its initial position. The counterbalancing means is preferably in the form of opposite weights, connected with the platform by ropes or cables arranged to run on suitable guides or pulleys, mounted on the sides or bars of the tiltable frame, or other suitable supporting means.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is z- 1. An-apparatus of the class described in cluding a pivoted platform adapted to receive a load of material, means for swinging the platform upwardly to an inclined position, a hinged wall carried by the platform and adapted to retain the material on the platform until the latter has reached an elevated position, and means movable with the platform and pivotally connected with the hinged wall for automatically lowering the same as the platform is elevated.

2. An apparatus of the class described including a base, a pivoted platform adapted to receive a load of material, means for swinging the platform upwardly to an inclined position, a hinged wall carried by the platform and adapted to retain the material on the platform until the latter has reached an elevated position, and means pivotally connected with the base and with the hinged wall for automatically lowering the same as the platform is elevated, the latter means maintaining the hinged wall in an upright position when the platform is lowered and forming a support for the hinged wall when the platform is elevated.

8. An apparatus of the class described i11- cluding a pivoted platform adapted to receive a load of material, means for swinging the platform upwardly to an inclined position, a hinged wall carried by the platform and adapted to retain the material on the platform until the latter has reached an elevated position, and means connected with the hinged wall for automatically lowering the same as the platform is elevated, the latter means also supporting the hinged wall in an inclined position to form a chute.

4. An apparatus of the class described including a pivoted platform, means for swinging the platform upwardly to an inclined position, a hinged wall carried by the platform, and pivoted means connected with the hinged wall for causing the same to swing through an are different from that of the platform to cause a relative independent downward movement of the hinged wall during the upward movement of the platform, the said pivoted means also supporting the hinged wall in an inclined position to form a chute.

5. An apparatus of the class described including a pivoted platform, means for swinging the platform upwardly to an inclined position, a hinged wall carried by the platform, and a pivoted member connected with the hinged wall and arranged to cause the same to swing through an arc of less radius than that of the platform, whereby the hinged wall is automatically lowered during the upward movement of the platform, said pivoted member also operating to support the hinged wall in an inclined position to form a chute.

6. An apparatus of the class described including a platform having a forwardly extending pivoted arm, a hinged wall connected with the platform at the front portion thereof, means for raising and lowering the platform, and a pivoted brace supporting the hinged wall and arranged to impart to the latter an independent downward movement during the upward swinging of the platform.

7 An apparatus of the class described including a base having a pivot, a movable platform having a forwardly extending arm or portion mounted on the said pivot, a hinged wall arranged at the front of the platform and carried by the same in the upward and downward movement thereof, an inclined brace pivotally connected with the hinged wall and supporting the same, and a link having a pivotal connection with the brace and connecting the latter with the said pivot, the distance between the link and the hinged wall being less than the distance between the pivot and the platform, whereby a relative downward movement is imparted to the hinged wall during the upward movement of the platform.

8. An apparatus of the class described comprising a base provided at the front with a pivot, a platform arranged to rest upon the base and having forwardly extending arms mounted on the said pivot, a wall hinged to the platform at the front thereof, inclined braces pivotally connected at their upper ends to the platform, links pivotally connected with the lower ends of the braces and with the said pivot, and means for raising and lowering the platform.

9. An apparatus of the class described including a platform pivoted at one side and arranged to swing upwardly and downwardly, a tiltable frame pivoted at the opposite side of the platform and arranged to swing toward and from the platform and extending over the platform when the latter is in an elevated position, and hoisting mechanism connected with the tiltable frame and with the platform and adapted to raise and lower the platform and produce an inward swinging of the tiltable frame when the platform is raised.

10. An apparatus of the class described including a platform pivoted at one side and arranged to swing. upwardly and downwardly, a tiltable frame mounted at one side of the platform, and a hoisting rope or cable mounted 011 the tiltable frame and having a portion connected with the platform for raising and lowering the same, said tiltable frame being arranged to swing inwardly over the platform as the latter is elevated.

11. An apparatus of the class described including a pivotally mounted platform arranged to swing upwardly and downwardly, a tiltable frame having side bars or members pivotally mounted at opposite sides of the apparatus, guide pulleys mounted on the tiltable frame, and a hoisting rope or cable arranged on the guide pulleys and connected with the platform and arranged to swing the platform upwardly and the tiltable frame inwardly over the platform.

12. An apparatus of the class described including a base provided with front and rear pivots, a platform supported upon the rear portion of the base and provided with arms mounted on the front pivot, a tiltable frame connected with the base by the rear pivot, and a hoisting device carried by the tiltable frame and connected with the platform for raising and lowering the same.

13. An apparatus of the class described including a base provided with front and rear pivots, a platform supported upon the rear portion of the base and provided with arms mounted on the front pivot, a tiltable frame composed of inclined side members connected to the base by the rear pivot, and an inclined rear member secured to the upper ends of the side members and having means movable on the pivot, and a hoisting device carried by the tiltable frame and connected with the platform for raising and lowering the same.

14. An apparatus of the class described including a base provided with front and rear pivots, a platform supported upon the rear portion of the base and provided with arms mounted on the front pivot, a tiltable frame composed of inclined side members connected to the base by the rear pivot, and an inclined rear member secured to the up per ends of the side members and having means movable on the pivot, and a bottom bar secured at one end to the rear bar or member and provided at the other end with a bearing recess receiving the rear pivot, and a hoisting device carried by the tiltable frame and connected with the platform.

15. An apparatus of the class described including a base having front and rear pivots, a platform supported by the base and having arms mounted on the front pivot, a. hinged wall carried by the platform, inclined braces pivotally connected with and supporting the hinged wall, links mounted on the front pivot and pivotally connected with the braces, a tiltable frame connected with the base by the rear pivot, and a hoisting device carried by the tiltable frame and connected with the platform.

16. An apparatus of the class described including a base having front and rear transverse pivot rods, wheels mounted on the ends of the pivot rods, a platform supported by the rear portion of the base and having forwardly extending arms mounted on the front pivot, a tiltable frame mounted on the rear pivot and arranged to swing over the platform, and a hoisting device carried by the tiltable frame and connected with the platform.

17. An apparatus of the class described including a base, a pivoted platform connected with the base and arranged to swing upwardly and downwardly from a lower horizontal position to an upper inclined position, means for raising and lowering the platform, a hinged wall mounted upon the platform at the pivotal side thereof and provided with guides for directing the material toward the center, and means connected with the hinged wall for automatically lowering the same as the platform is raised.

In testimony, that I claim the foregoing as my own, I have hereto'aflixed my signature in the presence of two witnesses.

WILLIAM G. EVANS.

WVitnesses:

RALPH A. NIoHoLAs, FRED W. STOW.

Copies of this patent may be obtained for five cents each, by addressing the Washington, D. G.

Commissioner of Patents, 

